21031030322023 has 2 divisors, whose sum is σ = 21031030322024. Its totient is φ = 21031030322022.

The previous prime is 21031030321901. The next prime is 21031030322047. The reversal of 21031030322023 is 32022303013012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21031030322023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21031030321985 and 21031030322003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21031030322623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515515161011 + 10515515161012.

It is an arithmetic number, because the mean of its divisors is an integer number (10515515161012).

Almost surely, 2^{21031030322023} is an apocalyptic number.

21031030322023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21031030322023 is an equidigital number, since it uses as much as digits as its factorization.

21031030322023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21031030322023 its reverse (32022303013012), we get a palindrome (53053333335035).

The spelling of 21031030322023 in words is "twenty-one trillion, thirty-one billion, thirty million, three hundred twenty-two thousand, twenty-three".